Djokovic was asked about Stefan after the match, and while he said he didn't know the youngster was watching him, he did feel positive vibes from his boy:

"See how he enjoys watching TV?" Djokovic joked. "He's daddy's boy definitely. I didn't know he was watching me this way, but I felt his energy. So that helped me tonight, definitely."

Stefan is just three months old, so he probably wasn't able to stay awake for the entirety of the match. But there wasn't much to see -- Djokovic easily took care of Raonic and advanced to his 25th Grand Slam semifinal. The 27-year-old will take on 2014 Australian Open champ Stan Wawrinka.

Novak and Jelena were married in July 2014, and Stefan was born in October.